The force most responsible for holding the nucleus of an atom together is the:

A. force of attraction between protons and electrons
B. the force of repulsion of protons and electrons
C. the force of repulsion between protons and neutrons
D. the strong nuclear force of attraction between particles in the nucleus

Question

The force most responsible for holding the nucleus of an atom together is the: 

   A. force of attraction between protons and electrons 
  B. the force of repulsion of protons and electrons 
  C. the force of repulsion between protons and neutrons 
  D. the strong nuclear force of attraction between particles in the nucleus

anonymous · Answer

It should be D.  It is said that nuclear force acts in the fermi range i.e 10^(-15) m.   
Nuclear force > Electrical force> Gravitational force 
So now guess your answer :)

anonymous · Answer

Ohh :P  I already gave the answer :P

anonymous · Answer

This is the strength of the forces in descending order:
Nuclear force > Electrical force> Gravitational force

anonymous · Answer

Oh alright, that made it easier to choose the answer. Thanks for explaining it.

anonymous · Answer

welcome :)